Supernova

All that remains of the oldest documented example of a supernova, called RCW 86, is seen in this image, a combination of data from four different space telescopes to create a multi-wavelength view, released by NASA. X-ray images from the European Space Agency's XMM-Newton Observatory and NASA's...

All that remains of the oldest documented example of a supernova, called RCW 86, is seen in this image, a combination of data from four different space telescopes to create a multi-wavelength view, released by NASA. X-ray images from the European Space Agency's XMM-Newton Observatory and NASA's... (Reuters photo)

All that remains of the oldest documented example of a supernova, called RCW 86, is seen in this image, a combination of data from four different space telescopes to create a multi-wavelength view, released by NASA. X-ray images from the European Space Agency's XMM-Newton Observatory and NASA's...